Gray's Manual of botany; a handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada

title_full

Gray's Manual of botany; a handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada. / Largely rewritten and expanded by Merritt Lyndon Fernald, with assistance of specialists in some groups

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Gray's Manual of botany

title_sub

a handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada